Region in heart of the Swan (Cygnus) around the Crescent Nebula. Hydrogen gas and dust in this area. Imaged with Canon 60Da Astronomik 6nm clip H-alpha filter, Canon 70-200mm @ f/2.8, 8x300 sec., and 5x600 sec., ISO 3200. Piggyback on LX200 GPS, auto guided with Orion Star Shoot Auto Guider, PhD Guiding. PhotoShop CS6.